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New Lenox, IL Window Installation & Replacement
Trusted Window & Door Replacement in New Lenox, IL
When it comes to upgrading your home’s windows in New Lenox, IL, you deserve a company that values quality, craftsmanship, and customer satisfaction. At Welsh Windows Plus, we’re proud to be a local, family-run business serving the South Chicagoland suburbs, including New Lenox, with over 20 years of experience and thousands of successful installations. Whether you're replacing outdated windows in a newer home or upgrading original windows in one of New Lenox’s charming neighborhoods, we’re here to help.
We specialize in premium products from Pella Windows and Lang Windows, giving homeowners in New Lenox access to some of the best-performing and most stylish options on the market. And with our full-time, in-house team of expert installers, you can count on a seamless process—no subcontractors, just trained professionals who treat your home like their own.
Our approach is rooted in transparency and convenience. From the initial consultation to the final walk-through, we keep you informed and confident every step of the way. We never rely on high-pressure sales tactics—just honest advice to help you find the right windows for your needs and budget. Check out our project gallery for real results from satisfied customers, browse verified reviews, and explore our warranties and financing options. At Welsh Windows Plus, we stand behind every window we install—because we believe you should feel great about your investment.
We provide expert window replacement services for apartments and condos, ensuring modern aesthetics, improved energy efficiency, and long-lasting durability. Whether you're a property manager, condo association, or individual unit owner, our in-house team of skilled installers guarantees a smooth, hassle-free process with no subcontractors. With over 20 years of experience, transparent pricing, warranties, and a no-pressure sales approach, we make upgrading your windows simple and stress-free. Call us today or fill out our form for a free quote!
Apartment / Condo Window Replacement
We specialize in high-quality residential window replacement that enhances your home’s beauty, comfort, and energy efficiency. With over 20 years of experience and a trusted, in-house installation team, we ensure a seamless, stress-free process from consultation to completion. Our no-pressure sales approach, transparent warranties, and stellar customer reviews make us the top choice for homeowners in New Lenox, IL. Ready to upgrade your windows? Call us today or fill out our form for a free quote!
Residential Window Replacement
Why Choose Us
Locally Owned & Made
Rooted in the South Chicago Suburbs. We intimately comprehend the needs and challenges of the local community. We are here to serve our neighbors and friends.
Tailored
Consultation
Whether you're seeking energy-efficient windows, a particular aesthetic, or have budget constraints, we invest the time in understanding your preferences.
Transparent
Process
We provide step-by-step guidance throughout the entire process, ensuring that you remain well-informed at every stage.
Professional Installation
We rely on our in-house installation team, ensuring that your windows are meticulously installed with precision and an unwavering commitment to craftsmanship.
Patio & Exterior Doors
Upgrade your home’s look, comfort, and energy efficiency with professional patio and exterior door installation.
Whether you're replacing an old sliding door or installing a brand-new entryway, we offer expert service, custom options, and seamless installation.
Trusted by homeowners across Chicagoland for quality doors and dependable results.
Reviews
Emily - New Lenox, IL
“Welsh Windows Plus did a great job replacing our old windows! Rob, Ron and Justin did a fantastic job doing the work! They we're very professional and respectful to our home while they were here. My husband was very impressed with how clean they kept our home and yard throughout the whole tear-out and installation process. The new windows look fantastic, especially the trim work inside and out."
Eli - New Lenox, IL
"Eric and John did an amazing job on replacing our windows. Couldn't be happier. They were very professional and cleaned up after themselves as well! They communicated with me about anything I asked or needed to know. The whole process from start to finish with Tim, Jennifer, Bob, Eric and John was excellent service. Thank you Welsh Windows!!!"
Liz - New Lenox, IL
“Thursday we had our two bedroom windows replaced by Welsh. Rob & Ron did an excellent job. Very efficient & cleaned everything when they finished. The new windows look great and we no longer have the draft coming through. Much quieter since we live near I-57. Rob showed us how the windows open & how easily they open to clean them. We highly recommend them!”